
<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">Additionally added PhysicalMaterial boxes for comparison.<div><br></div><div>Best regards,</div><div>Holger</div><div><br id="lineBreakAtBeginningOfMessage"><div>

<div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div dir="auto" style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div dir="auto" style="text-align: start; text-indent: 0px; overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px;">--</div><div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px;">Holger Seelig</div><div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px;">Leipzig, Germany</div><div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px;"><br></div><div style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; -webkit-text-stroke-width: 0px;">holger.seelig@yahoo.de</div><div>https://create3000.github.io/x_ite/</div></div></div></div></div></div></div>

</div>

<div><br><blockquote type="cite"><div>Am 21.02.2025 um 14:02 schrieb Andreas Plesch <andreasplesch@gmail.com>:</div><br class="Apple-interchange-newline"><div><div dir="auto"><div>Thanks, Holger. x3dom currently does not have UnlitMaterial.</div><div dir="auto"><br></div><div dir="auto">Andreas<br><br><div class="gmail_quote gmail_quote_container" dir="auto"><div dir="ltr" class="gmail_attr">On Fri, Feb 21, 2025, 7:42 AM Holger Seelig <<a href="mailto:holger.seelig@yahoo.de">holger.seelig@yahoo.de</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="line-break:after-white-space">There seems to be lot of differences across browsers:<div><br></div><div><div style="">X_ITE</div><div style=""><a href="https://create3000.github.io/x_ite/playground/?url=https://create3000.github.io/Library/Tests/Components/Shape/CompareEmissive.x3d" target="_blank" rel="noreferrer">https://create3000.github.io/x_ite/playground/?url=https://create3000.github.io/Library/Tests/Components/Shape/CompareEmissive.x3d</a></div></div><div><br></div><div>X3DOM</div><div><a href="https://andreasplesch.github.io/Library/Viewer/index.html?url=https://create3000.github.io/Library/Tests/Components/Shape/CompareEmissive.x3d" target="_blank" rel="noreferrer">https://andreasplesch.github.io/Library/Viewer/index.html?url=https://create3000.github.io/Library/Tests/Components/Shape/CompareEmissive.x3d</a></div><div><br></div><div>Download URL for Castle and FreeWrl:</div><div><a href="https://create3000.github.io/Library/Tests/Components/Shape/CompareEmissive.x3d" target="_blank" rel="noreferrer">https://create3000.github.io/Library/Tests/Components/Shape/CompareEmissive.x3d</a></div><div><br></div><div>Best regards,</div><div>Holger</div><div><br id="m_3112105522244029402lineBreakAtBeginningOfMessage"><div>

<div dir="auto" style="letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; line-break: after-white-space;"><div dir="auto" style="letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; line-break: after-white-space;"><div dir="auto" style="letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; line-break: after-white-space;"><div dir="auto" style="letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; line-break: after-white-space;"><div dir="auto" style="letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none; line-break: after-white-space;"><div dir="auto" style="text-align:start;text-indent:0px;line-break:after-white-space"><div style="letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none;">--</div><div style="letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none;">Holger Seelig</div><div style="letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none;">Leipzig, Germany</div><div style="letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none;"><br></div><div style="letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; text-decoration: none;"><a href="mailto:holger.seelig@yahoo.de" target="_blank" rel="noreferrer">holger.seelig@yahoo.de</a></div><div><a href="https://create3000.github.io/x_ite/" target="_blank" rel="noreferrer">https://create3000.github.io/x_ite/</a></div></div></div></div></div></div></div>

</div>

<div><br><blockquote type="cite"><div>Am 20.02.2025 um 23:21 schrieb Andreas Plesch via x3d-public <<a href="mailto:x3d-public@web3d.org" target="_blank" rel="noreferrer">x3d-public@web3d.org</a>>:</div><br><div><div dir="ltr"><div>Looking at UnlitMaterial:</div><div><br></div><div><a href="https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4.1-CD/Part01/components/lighting.html#LightingUnlit" target="_blank" rel="noreferrer">https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4.1-CD/Part01/components/lighting.html#LightingUnlit</a></div><div><br></div><div>Can UnlitMaterial be thought of as Material without light contributions ? Eg. on_i for all lights is 0 ?</div><div><br></div><div>It looks equivalent but perhaps there is a subtle difference. Yeah, one subtle difference appears to be that the transparency field is applied to diffuse.a rather than emissive.a .</div><div><br></div><div>Related, the Phong lighting in the case of on_i all zero, does not seem to have a way to specify an alpha for emissive ? Not sure how much use emissive alpha has but UnlitMaterial has it.</div><div><br></div><div>Thanks for any input, -Andreas</div><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div>Andreas Plesch<br>Waltham, MA 02453</div></div></div></div>

_______________________________________________<br>x3d-public mailing list<br><a href="mailto:x3d-public@web3d.org" target="_blank" rel="noreferrer">x3d-public@web3d.org</a><br><a href="http://web3d.org/mailman/listinfo/x3d-public_web3d.org" target="_blank" rel="noreferrer">http://web3d.org/mailman/listinfo/x3d-public_web3d.org</a><br></div></blockquote></div><br></div></div></blockquote></div></div></div>

</div></blockquote></div><br></div></body></html>